Stochastic screening and scoping of separation sequences using detailed simulation models |
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| Affiliation: | 1. Center for Advanced Materials, Qatar University, Doha, Qatar;2. Institute of Infrastructure Technology Research & Management (IITRAM), Ahmedabad, Gujarat, India;3. Department of Chemical Engineering, College of Engineering, Qatar University, Doha, Qatar;1. Department of Viroscience, Erasmus MC ′s-Gravendijkwal 230, 2040, 3000 CA Rotterdam, The Netherlands;2. Department of Hospital Pharmacy, Erasmus MC ′s-Gravendijkwal 230, 2040, 3000 CA Rotterdam, The Netherlands;1. Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, DE 19716, USA;2. Dow, 230 Abner Jackson Parkway, Lake Jackson, TX 77566, USA;1. Department of Electrical & Electronic Engineering Science, University of Johannesburg, Johannesburg 2006, South Africa;2. Council for Scientific and Industrial Research, Pretoria, South Africa |
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| Abstract: | The paper presents stochastic optimisation technology as applied on separation sequencing problems. Simulated annealing is employed along with a synthesis representation in the form of a dynamic vector. Permutations on the vector and perturbations on the current state generate new sequences and layouts that are accessed, accepted and rejected. The approach can handle problems of industrial complexity. Operational variables (pressures, reflux ratios, product composition) can be optimised simultaneously with the structure. The potential of the methodology is illustrated with an FCC example. |
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